2023年8月29日 · Characteristics: Calcium is a rather soft, very active metal. Very similar to barium in its chemical properties. Soluble sulfates, such as sulfuric acid, do not precipitate \ce {Ca^ {2+}} as calcium sulfate, unless the calcium ion is present in very high concentrations.

We will review some of the chemical properties of Ca2+ that are important to its role in biology, we will review intracellular Ca2+ stores, and we will review other Ca2+ handling proteins.

Calcium ions (Ca 2+) contribute to the physiology and biochemistry of organisms' cells. They play an important role in signal transduction pathways, [2][3] where they act as a second messenger, in neurotransmitter release from neurons, in contraction …

Ca2+ is a ubiquitous intracellular messenger that controls diverse cellular functions but can become toxic and cause cell death. Selective control of specific targets depends on spatio-temporal patterning of the calcium signal and decoding it by ...

Calcium signaling is the use of calcium ions (Ca 2+) to communicate and drive intracellular processes often as a step in signal transduction. Ca 2+ is important for cellular signaling. Once it enters the cytosol of the cytoplasm it exerts allosteric …

2007年12月14日 · Calcium ions (Ca2+) impact nearly every aspect of cellular life. This review examines the principles of Ca2+ signaling, from changes in protein conformations driven by Ca2+ to the mechanisms that control Ca2+ levels in the cytoplasm and organelles.

2018年8月24日 · Calcium ions (Ca 2+) are some of the most versatile signalling molecules, and they have many physiological functions, prominently including muscle contraction, neuronal...

Thus, Ca 2+ ions have to be distributed throughout the organism and made available where needed. In higher organisms, such as humans, the blood-plasma level of total calcium is kept constant (≈2.45 mM) within narrow limits, and there must …

2003年7月1日 · Ca 2+ is a highly versatile intracellular signal that operates over a wide temporal range to regulate many different cellular processes. This signalling system uses 'on' reactions that introduce...

The divalent cation calcium (Ca2+) is considered one of the main second messengers inside cells and acts as the most prominent signal in a plethora of biological processes. Its homeostasis is guaranteed by an intricate and complex system of ...